Prerequisites#

This guide assumes you have the following prerequisites in place:

• FluxCD

Zalando Postgres Operator#

The Zalando Postgres Operator is an open-source project that allows you to run HA PostgreSQL in a Kubernetes cluster.

Installation#

1. Create the following directory structure for the Pg Operator:

   Copy

    pg-operator/
    ├── pg-operator-repo.yml
    └── pg-operator-release.yml

2. Add the following content to pg-operator/pg-operator-repo.yml:

   Copy

    ---
    apiVersion: source.toolkit.fluxcd.io/v1
    kind: HelmRepository
    metadata:
      name: postgres-operator-charts
      namespace: flux-system
    spec:
      interval: 6h
      url: https://opensource.zalando.com/postgres-operator/charts/postgres-operator

3. Add the following content to pg-operator/pg-operator-release.yml:

   Copy

    ---
    apiVersion: helm.toolkit.fluxcd.io/v2
    kind: HelmRelease
    metadata:
      name: postgres-operator
      namespace: postgres-operator
    spec:
      interval: 6h
      chart:
        spec:
          chart: postgres-operator
          version: "1.15.1"
          sourceRef:
            kind: HelmRepository
            name: postgres-operator-charts
            namespace: flux-system
          interval: 6h
      install:
        createNamespace: true
      upgrade:
        remediation:
          remediateLastFailure: true

4. Commit and push the changes to your Git repository. FluxCD will automatically deploy the Pg Operator to your cluster.